Definition of "cohabit"

cohabit

/koʊˈhæbɪt/

verb
third-person singular simple present cohabits, present participle cohabiting, simple past and past participle cohabited
1. (intransitive) To live together with someone else, especially in a romantic and sexual relationship but without being married.
2. (intransitive) To coexist in common environs with.
3. (intransitive, archaic) To engage in sexual intercourse; see coition.